OT Network Engineer: Secure Industrial Networking & Design

Sword Group; Glasgow; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Flexible working

Career development

Benefits package

Job summary

Sword Group is seeking an OT Network Engineer/Consultant to design, implement and deliver secure OT network infrastructure across complex industrial environments. You will work on firewalls, DMZs, VLANs, and secure connectivity between IT, OT and safety-critical systems.

You will collaborate with clients, vendors and internal teams to ensure resilient architectures, perform testing and optimisation, and support commissioning and go-live activities.

Qualifications

• Strong hands-on experience with enterprise and industrial networking.
• Solid knowledge of TCP/IP, VLANs, routing, switching, DNS and network services.
• Experience configuring and managing next-generation firewalls.
• Experience with platforms such as Palo Alto Networks, Fortinet, Cisco or Check Point.
• Strong understanding of firewall policies, NAT, VPNs, IPS/IDS and application-based security controls.
• Experience designing OT network segmentation and industrial DMZs.
• Experience with Cisco switching and routing technologies.
• Experience supporting secure remote access into OT environments.
• Understanding of industrial protocols and OT network architectures.
• Experience with network monitoring, packet analysis and troubleshooting tools.
• Experience with high availability, redundant networking and resilient network architectures.
• Experience with network device hardening and vulnerability remediation.
• Experience supporting network integration, testing, validation and commissioning activities.
• Experience producing technical network designs, diagrams, security documentation and test procedures.

Responsibilities

• Design and implement secure OT and industrial network architectures.
• Configure and manage firewalls, switches, routers and secure remote access solutions.
• Design and implement network segmentation across IT, OT and safety-critical environments.
• Support the deployment of industrial DMZs, security zones and conduits.
• Configure VLANs, routing, access controls and network security policies.
• Support firewall policy design, rule reviews and optimisation.
• Implement secure connectivity for OT applications, servers, engineering workstations and industrial systems.
• Support vendor and third-party network integration.
• Support network migrations, upgrades and infrastructure refresh programmes.
• Undertake network testing, validation and performance analysis.
• Support FAT, SAT, commissioning and production go-live activities.
• Troubleshoot complex network, connectivity and firewall issues.
• Support network hardening, vulnerability remediation and security improvement activities.
• Produce HLDs, LLDs, network diagrams, firewall rule sets, test plans and as-built documentation.
• Work alongside OT, cyber security, infrastructure, application and engineering teams.
• Provide technical consultancy and guidance to clients on OT network security and resilience.

Skills

Industrial networking

TCP/IP

VLANs & routing

Firewall administration

OT security principles

Vendor liaison

CCNA/CCNP advantageous

Job description

Sword Group is seeking an OT Network Engineer/Consultant to design, implement and deliver secure OT network infrastructure across complex industrial environments. You will work on firewalls, DMZs, VLANs, and secure connectivity between IT, OT and safety-critical systems.

You will collaborate with clients, vendors and internal teams to ensure resilient architectures, perform testing and optimisation, and support commissioning and go-live activities.